Hello Linux Geeksters. As you may know, both Firefox 36 and Thunderbird 31.5.0, the most popular two Mozilla software have been released yesterday.
Recently, both Firefox 36 and Thunderbird 31.5.0 have been added to main repositories of Arch Linux, so to install the them on your system, do:
$ sudo pacman -S firefox thunderbird
$ sudo yaourt -S firefox thunderbird
Or, if you already have Firefox and Thunderbird installed on your system, just perform a regular system upgrade:
$ sudo pacman -Syu
$ sudo yaourt - Syua